Files stay on your device

Media to Audio Converter

Extract or convert audio to MP3, WAV, AIFF, and browser-supported Opus—with no uploads, no server, and no external files.

1. Choose your media

Select one audio or video file to process locally.

Settings update the size estimate automatically.

Output format

All encoder code is contained in this HTML file.

Compressed quality

Sample rate

Channels

File name

Trim audio

Start (seconds)

End (seconds)

Choose a start and end point, or keep the full file.

Normalize volume

Raise quiet audio while avoiding clipping.

Add short fades

Apply a 0.25-second fade at both ends.

Duration

—

Estimated size

—

Output

MP3 · Stereo

Large or long files can use substantial memory. Keep this tab open until conversion is complete.